John evarts spears



(No Model.)

J. E. SPEARS.

BOOK.

No. 471,905. Patented Mar. 29, 1892.

WITNESSES.

To all whom it may concern.-

' Uterine STATES Fries.

PATENT BOOK.

SPECIFICATION forming part of Letters Patent No. 471,905, dated March 29, 1892.

Application filed July 22, 1891. Serial No. 400,327. (No model.)

Be it known that I, JOHN EVARTS SPEARS, of New York city, in the county and State of New York, have invented a new and Improved Book, of which the following is a full, clear, and exact description.

Certain lettercopying and other office books are provided with an extension-indexthat is to say, an index which is connected by means of a flexible strip with the outer edge of the right-hand cover of a book and adapted to be folded outward and opened alongside said book. The index upon which mine is an improvement is so attached to the flexible strip, which secures it to the book-cover, that when folded inward and closed within said book-cover the letters along the edge of the index are covered and concealed by the aforesaid fiexible strip. Therefore the index cannot be consulted without completely unfolding it. By my invention the index is so attached to the flexible strip that connects it with the book-cover that when folded inward and closed within the latter the letters on its edge are visible and accessible, and hence the index may be consulted as readily as the common kind, which is not adapted to be extended.

To this end my invention consists in certain features of construction and combinations of parts, which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a broken bottom edge View of the connected book and index, showing both in an open position. Fig. 2 is a perspective View of the same, and Fig. 3 is a perspective View showing the book opened and the index closed and folded within the covers of the book.

The book 10 is an ordinary copying-book, and it is provided with a common form of index 11, which is held in a suitable binding, and is adapted to be contained within the covers of the book 10 and to lie against the book-covers.

The index is connected withone of the cov- 5o ers of the book by a flexible strip 12, which may be of paper, cloth, or any other suitable material, and this strip is united near its free end with the back of the indexcover, is jointed or creased, as shown at 13, near its point of attachment to the index, and is se cured at its opposite edge to the outer portion of the book-cover, as shown at 14.

WVhen the index is folded within the book, it is closed outward and is then doubled inward, thus doubling up the connecting-strip 12 at the point 13, as shown in Fig. 3, and when the index is opened it is carried outward from the side of the book 10, and is then thrown open in the usual way.

The connecting-strip 12, from the joint 13 to its-point of connection with the cover of the book 10, is somewhat wider than the index 11, as best shown in Fig. 3, and when the index is carried outward and opened, as in Figs. 1 and 2, the distance between the index and book is multiplied, as the strip 12 is stretched out straight, or nearly so, and consequently when the index is opened there will be a clear space 15 between the adjacent leaves of the book 10 and the index 11, so that both the index and the book may be conveniently used, and their leaves will not in any Way interfere.

The great advantage of my arrangement of parts is that when the index is folded upon the book-cover, as shown in Fig. 3, the letters on its outer edge are always visible at the right hand, and thus the index may be consulted as easily as the ordinary and well- 8 5 known form of index, which is bound into the copying-book. This is particularly important in the saving of time and labor.

Having thus described my invention, I claim as new and desire to secure by Letters 0 Patent As the improvement hereinbefore specified, the combination, with a copying or other book and the flexible strip 12, attached to its cover and creased or jointed, as shown at 13, 5 so as to fold upward, of the index proper 11, which is secured to the upper side of said strip at a point a short distance from said crease, as shown and described, whereby in the index is visible and accessible, as specifolding the index the strip bends upward at tied. 13 and folds inward directly upon the cover, J. EVARTS SPEARS and the index proper 1s also folded down upon and not within the portion of the strip that Witnesses:

lies outside said crease, so that when fully 11. D. D. RIPLEY,

closed Within the book the lettered edge of J. S. A. TITTKE. 

